baber/WOPTO huggingface dataset:
Patent GB-810297-A (GB)
Title: New stilbene monoazodyestuffs and process for their manufacture
IPC: C09B56/04
Filed: 1955-06-30
Abstract: Amines of formula <FORM:0810297/IV (b)/1> where R1 is a benzene residue and NH-OC is o to NH2, are made by acylation of appropriate aminostilbene sulphonic acids to provide the residue -OC-R1-NO2, the NO2 group then being reduced.  Both the Acyl group and residue R1 may contain substituents such as chloro, methyl, methoxy or ethoxy groups.  The products are dyestuff intermediates (see Group IV (c)). In Example (1) 4-nitro-41-aminostilbene-2,21-disulphonic acid is treated with acetic anhydride, the acetyl derivative reduced, the amine thus formed condensed with 4-nitrobenzoyl chloride and the product reduced, both reductions being effected with iron and acetic acid.ALSO:The invention comprises dyestuffs of formula <FORM:0810297/IV (c)/1> where R1 is a benzene residue and R2 a residue of an acetoacetylaminobenzene which is free of water-solubilizing groups and -NHCO- is pto -N = N-.  They are made by diazotizing an appropriately substituted amine R1NH2 and coupling with the required acetoacetylaminobenzene.  Advantageously the acylamino group, when aliphatic, contains not more than 3 C atoms. Specified acylamino groups are formyl-, acetyl-, propionyl- and benzoyl-amino.  The benzene nucleus of the benzoyl group may contain substituents such as chloro, methyl, ethyl, methoxy or ethoxy groups. Likewise residue R1 may contain groups such as methyl and chloro. Advantageously the benzene nuclei of the acetoacetylaminobenzenes contain at least one further substituent, e.g. methyl, ethyl, methoxy, ethoxy, bromo, chloro and acetylamino groups, particularly preferred being alkoxy groups in the o-position to -NH- and containing 1 or 2 C atoms, especially a methoxy group.  Specified coupling components are acetoacetylaminobenzene and 1-acetoacetylamino - 2 - chloro, 2 - and 4 - methoxy -, 2,4-dimethyl -, 2,5 - dimethoxy -, 2 - methoxy - 5-methyl -, 2 - methoxy and ethoxy - 4 - chloro-and bromo - 5 - methyl and 2 - chloro - 4 - acetamino - 5 - methoxy - benzenes.  The products dye or print wool, silk and leather but are particularly useful for cotton, linen, artificial silk or regenerated cellulose, greenish yellow shades being obtained.  In examples, which illustrate the preparation of the dyestuffs and their use in dyeing cellulose fibres, the diazo components used are 4 - acetyl -, propionyl -, benzoyl - and p - methoxy - and chloro - benzoyl - amino - 41-(411 - aminobenzoylaminostilbene) and 4 - benzoylamino - 41 - (411 - amino - 311 - methyl - benzoylaminostilbene) 2,21 - disulphonic acids the coupling components being chosen from those listed above with the addition of 1-acetoacetylamino - 2,5 - dimethoxy - 4 - chloro -, 4 - acetylamino - 5 - methoxy - 2 - chloro - and 3 - acetylamino, 2-methoxy-benzenes.
Patent GB-817141-A (GB)
Title: Improvements in the production of thermoplastic polymeric materials
Inventor: HEGGS THOMAS GEOFFREY
IPC: C08F279/04
Filed: 1956-06-20
Abstract: Thermoplastic polymeric materials are made by polymerizing the monomers to form one of a resinous copolymer and a rubbery copolymer in the presence of a stable aqueous dispersion of the other copolymer, the monomers forming the resinous copolymer comprising 100 parts by weight of a monomer mixture of styrene and acrylonitrile and containing from 50 to 90 per cent by weight of styrene, the monomers forming the rubbery copolymer comprising 10 to 100 parts by weight of a mixture of butadiene-1,3 and acrylonitrile containing from 55 to 85 per cent by weight of the former.  Polymerization may be carried out in the presence of catalysts such as hydrogen peroxide, potassium persulphate or a mixture of cumene hydroperoxide or benzoyl peroxide with a heavy metal salt and, if desired, sorbose or fructose, emulsifiers such as sodium lauryl, oleyl and cetyl sulphates, sodium oleate, palmitate and stearate, the sodium salt of sulphonated castor oil, the sodium salt of sulphated or sulphonated methyl oleate and hydrogenated and dehydrogenated rosin acid soaps, and modifiers such as di-(sec.-butyl)-disulphide, di-(2-methyl butyl)-disulphide, dialkyl xanthogen disulphides, di-ortho di-nitrophenyl disulphide, and primary, secondary and tertiary alkyl mercaptans such as dodecyl mercaptan.  The polymeric products may be vulcanized by heating in the presence of sulphur.
Patent GB-1066472-A (GB)
Title: Improvements in and relating to the testing of magnetic recording tape
Inventor: NASH JOHN
IPC: G01R33/12
Filed: 1964-05-07
Abstract: 1,066,472. Testing magnetic tape; counter circuits. BRITISH BROADCASTING CORPORATION. June 8, 1965 [May 7, 1964], No. 19102/64. Headings G4D and G5R. Test apparatus for determining the number of " drop out" regions in a magnetic tape i.e. the number of regions of the tape in which the magnetic recording material is absent from the support medium, comprises means for recording a constant amplitude signal on the tape e.g. a black level signal on a video tape, means for reproducing the signal with superimposed " drop out " pulses and means for recording the number of pulses produced and the number of times the pulse count per predetermined length of tape exceeds a set value. Each drop out pulses in the reproduced signal at the output of amplifier 12 triggers a monostable multivibrator 13 and the constant duration output pulses from the multivibrator are applied via a first path 14-18 including inhibit circuit 14 and " divide by ten " circuit 15 to a counter 19 which records in tens the number of drop out regions in the tape. The inhibit circuit is provided to close the path if due to some fault in the reproducing means spurious pulses are produced at a rate sufficient to charge capacitor 22 via emitter follower 20 and rectifier 21 to a value which triggers circuit 23. The output of the D.C. trigger circuit operates an alarm 27 in addition to closing the counting path. The pulses from amplifier 12 are also applied via amplifier 28 to a monostable multivibrator 29 which is connected to a " divide by eight " chain 30, 36, 37. This chain is associated with a free running multivibrator 32 which generates a signal each four seconds to return the chain to zero. If more than seven drop out regions are present in a length of the tape which takes four seconds to pass the transducer head an output signal is applied to a counter 47 and also to a circuit 43 which applies a mark on a cue track on the tape. Fig. 2 (not shown) indicates an arrangement whereby " drop out " pulses longer than a set duration are applied to multivibrator 13 and pulses longer than a much shorter duration are applied to multivibrator 29.
Patent GB-975173-A (GB)
Title: Method of making lined flexible pipes of natural or synthetic yarn
IPC: F16L11/02
Filed: 1961-05-29
Abstract: 975,173. Lining pipes. FARBWERKE HOECHST A.G. May 29, 1961 [May 28, 1960; May 5, 1961], No. 19360/61. Drawings to Specification. Heading F2P. In a method of making lined flexible pipe of yarn of natural or synthetic fibres, a lining film of linear synthetic polyester, polyamide or polyolefin is introduced into the flexible pipe together with an adhesive and the flexible pipe and the lining film are bonded together by means of the adhesive on the application of heat and pressure. Preferably a film of polyethylene terephthalate coated on one side with polyethylene is bent so that the edges abut and a strip of polyethylene terephthalate coated on one or both sides is bonded with heat and pressure to the edges to form an adhesivecoated tubular lining. The lining is introduced into the pipe and is bonded to the inner wall thereof by pressurized hot air or steam or alternatively by a heated body, e.g. a cylinder, cone or sphere of metal.
Patent GB-613729-A (GB)
Title: Improvements in apparatus for rolling tea leaf
IPC: A23F3/12
Filed: 1946-06-28
Abstract: 613,729. Tea-rolling machines. RIDLER, W. F. A., and MARSHALL'S TEA MACHINERY CO., Ltd. June 28, 1946. No. 19362. [Class 129] A tea-rolling machine of the type comprising a tubular casing adapted to receive tea leaf at one end and to discharge it at the other, a roller mounted on a shaft within the casing and means for rotating the shaft or casing or both is characterised by the provision of one or two couplings by means of which a portion of the shaft may be inclined to or displaced bodily from the remainder of the shaft, the roller being mounted on said portion. The casing 1 is of circular cross-section, with a flared opening 2 and a discharge chute 3, the latter having an adjustable sliding door 4. The roller 37, also of circular cross-section, is mounted on a shaft 20, which is connected by couplings 21, 22, to sleeves 27, 31, mounted in self-aligning bearings 10, 15, respectively. Each bearing is mounted in a carrier 11 or 16 which can be displaced laterally by adjusting nuts 13 or 18 to shift the roller axis. Further adjustment of the position of the roller axis can be provided by relative lateral displacement of the two halves of one or both couplings 21, 22. The roller may be fixed to the shaft 20 by a key 38 or may be left free to rotate on bearings 35, 36. The shaft 20 is driven through bevel gearing 32, 41, from fast and loose pulleys 43. The pulley shaft 42 is journalled integrally with the carrier 16. Tea juice and particles of tea leaf which escape past a sealing plate 56 are received by a chamber 51 having a drainage pipe 53. The chamber 51 can be flushed out by a hosepipe through apertures 51A. Either or both the roller and casing may be of polygonal or other non-circular cross-section, and the sides of the roller may be parallel. Either or both the internal surface of the casing and the external surface of the roller may be ribbed or fluted. The casing may be mounted for rotation in adjustable bearing housings of the type already described, and the roller may either be stationary or rotate in the same or opposite direction as the casing. The parts of the machine which contact the team may be of brass, gunmetal or stainless steel. In a modified construction, the axis of the casing is horizontal, and the tea leaf is fed into it by a vertical hopper and a horizontal worm feeding device.
Patent GB-1073550-A (GB)
Title: Improvements relating to cylinder-liners in internal combustion engines
IPC: F01P3/02
Filed: 1965-05-07
Abstract: 1,073,550. Cylinders. DAIMLER-BENZ A.G. May 7, 1965 [May 8, 1964], No.19385/65. Heading F1B. To reduce the contact pressure between a flange 14' of a cylinder liner 14 and the block 11, a stepped annular member 13 is interposed therebetween. Relative radial positioning between the block and member 13 is provided by abutting surfaces 17 and between member 13 and the liner by abutting surfaces 16. A coolant chamber 19 is connected with the cylinder head coolant chamber 20 by one or more passages 18 and passages 27. The junction between the member 13 and the cylinder head in the region of each passage 18 is sealed by a bush 21 and a compressed ring 24.
Patent GB-220444-A (GB)
Title: Improvements in or relating to locks or fastenings for attache and other cases
IPC: E05B65/50
Filed: 1923-07-30
Abstract: 220,444. Hill, W. J. July 30, 1923. Hasp fastenings.-In a hasp fastening of the type wherein a projection on the underside of the bolt passes through the loop of the hasp and engages the edge thereof, the projection a', engaging the loop b<1> of the hasp b, is formed by turning down the extremity of the bolt a.
Patent GB-1138669-A (GB)
Title: Mercury catalysts
IPC: C07C17/08
Filed: 1967-04-27
Abstract: 1,138,669. Addition process. MARATHON OIL CO. 27 April, 1967 [8 June, 1966], No. 19517/67. Heading C2C. A process for the addition to an unsaturated compound of HX, where X is halogen hydroxyl or acetate comprises contacting the reactants in the presence of the mercury form of a zeolite as a catalyst. An acid may also be present. The preparation of vinyl chloride, vinyl bromide, vinyl acetate and acetaldehyde from acetylene is described, in which case a mixture of acetylene with ethylene and methane may be used. Ethyl chloride may be produced as a minor by-product in the hydrochlorination reaction.
Patent GB-1368612-A (GB)
Title: Central discharge harvesters
IPC: A01D41/14
Filed: 1971-09-08
Abstract: 1368612 Harvester J Z LARROYA 8 Sept 1971 [10 Dec 1970] 19528/71 Heading A1F A harvesting machine pivotally mounted on the front of a tractor by two bars B is driven from the tractor p.t.o. by a transmission belt TR engaging a pulley P fixed on a shaft E which is journalled in one of the bars and which carries a smaller pulley PL which drives part of the machine (the tedding rake R via a transmission belts TM and TP) and carries an eccentric for driving a reciprocating cutter bar PM. Belt TM drives a transverse auger conveyor which moves the cut crop to the centre and delivers it to crushing rollers (Fig. 6, not shown) which deposit in a swath between the tractor wheels. The harvester has skids LS or height adjustable rollers (Fig. 9, not shown) covered with rubber or having helical blades. The harvester is coupled to the traotor by means of a component PX (Figs. 6-8, not shown) eccentrically pivotally mounted on the front of the tractor and having two hydraulic lifting jacks (V).
Patent GB-629910-A (GB)
Title: Improvements in or relating to the construction of walls, ceilings and the like and particularly walls for buildings
IPC: E04C1/40
Filed: 1947-07-22
Abstract: 629,910. Walls. EECON CONSTRUCTION CO., Ltd., and SHARPLES, A. G. July 22, 1947, No. 19559. [Class 20(iv)] A wall built up from the plaster-faced hollow clay blocks 11 described in Specification 595,232 is provided with a thin facing or facings 15, 16 of plaster. Specification 624,377, [Group III], also is referred to.
Patent GB-435499-A (GB)
Title: Improvements in kitchen cabinets and like articles of furniture
IPC: A47B77/10
Filed: 1934-07-03
Abstract: 435,499. Kitchen &c. cabinets. TRIUMPH CABINET WORKS, Ltd., and EDWARDS, J., 548, Holloway Road, London. July 3, 1934, No. 19574. [Class 52 (i)] A kitchen cabinet a or like article comprises a table d with folding front legs f, which are of angle-section iron. When turned up, the table forms the closure for the cupboard front, access to which may be obtained by opening doorlike parts b<1>, b<2> hinged at their sides; in this position the legs embrace the edges of the frame d. The rule-jointed struts g are housed in cut-away parts h.
Patent GB-293467-A (GB)
Title: Improvements in or relating to speedometer and inclinometer apparatus for motor roadvehicles
IPC: G01P1/08
Filed: 1928-07-06
Abstract: 293,467. Kreidler, A. July 7, 1927, [Convention date]. Drawings to Specification. Indicators, speed.-A speedometer is provided with means indicating the relative magnitude of the braking distance corresponding to the values indicated. In one form the scale on a speedometer has associated with it another scale giving the value of the braking distance at the various speeds. In another form, an inclinometer is provided with a second scale which gives the percentage change in the braking distance for the vehicle on gradients referred to the braking distance on the lavel. The scale divisions for the braking distance may be borne by arms or surfaces individually adjustable and locked. In a further form, the braking distance scale on the speedometer is made rotatable and is operated from the inclinometer through gearing of suitable transmission ratio. The inclinometer may be furnished with a moving scale of braking distance connected to the speedometer.
Patent GB-587017-A (GB)
Title: Improvements in or relating to overhead conveyor systems
IPC: B61B12/02
Filed: 1944-11-13
Abstract: 587,017. Rope railways. KING, Ltd., G. W., and KING, D. M. Nov. 13, 1944. No. 19815. [Class 104 (ii)] In overhead railway systems with trolleys driven by abutments on an endless chain 16 and with branch tracks 20 as in Specification 455,143,' the main track 10 is curved at the junctions 10a and the driving chain 16 is diverted to follow the main track. The chain 16 passes around one or more horizontal wheels 22 mounted between angle bars 23 and being either idlers or power-driven.
Patent GB-1485334-A (GB)
Title: Multi-layer monochromator
IPC: G01N23/00
Filed: 1975-05-12
Abstract: 1485334 Vacuum deposition process UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 12 May 1975 [20 June 1974] 19816/75 Heading C7F [Also in Division G6] A neutron mono-chromator comprises alternate layers 19, 23 of two materials having different scattering factors the materials being germanium and either tantalum or manganese, of at least 90% purity. The layers are deposited from the vapour state on an optical flat 17 e.g. B free quartz. Preferably, the layers are about 100 Angstroms thick for selecting neutrons having a wavelength of about 4 Angstroms at input and output angles of about 1 degree. In a method of depositing the  alternate layers, apparatus Fig. 4, comprising a pair of movable shutters, 25, 27 is used. Each shutter overlies a boat containing a respective one of the different metals to be deposited; the boats are heated to vapourize their contents and the shutters 25, 27 alternately opened and closed to deposit the different layers. By commencing to open one shutter while the other is being closed, variation of the different metal concentrations in each deposited layer is accomplished, Fig. 3A.
Patent GB-815074-A (GB)
Title: Improvements in or relating to the refining of metals by zone melting
Inventor: MURRAY JEAN ROBERTSON
IPC: C30B13/16
Filed: 1956-06-27
Abstract: A metal having at least one solid phase transition between its melting point and normal ambient temperature is refined by a zone melting process while contained in a crucible, the mass of metal being heated to a temperature between the highest solid phase transition temperature and its melting point, a zone of metal adjacent one end of the mass being raised to above the melting point and being caused to traverse the mass.  The invention may be applied to the refining of uranium in a crucible formed of uranium oxide, the whole mass of uranium being maintained at a temperature above 776 DEG C. during the process.  Specification 792,347 [Group III] is referred to.
Patent GB-787973-A (GB)
Title: Improvements in or relating to couplings for flexible shaft
IPC: F16C1/08
Filed: 1956-06-27
Abstract: 787,973. Flexible shafts. STEWARTWARNER CORPORATION. June 27, 1956 [July 1, 1955], No. 19868/56. Class 80 (2). A flexible shaft 1 for use in a speedometer drive is mounted in a non-rotary flexible case 7 carrying at its ends sleeves 11 each formed with a flange 12 secured to a rubber &c. coupling sleeve 9 which snaps on to the end of a stationary sleeve 10. To reduce the transmission of noise along the flexible shaft 1, a hard rubber cord 14 is secured to its end by a clamp 13, and another clamp 15 secures the other end of the cord to a pin 16 rotationally connecting it to a shaft 17 supported in the stationary sleeve 10. The pin 16 slides into engagement with the shaft 17 as the rubber sleeve 9 is pushed on to the sleeve 10.
Patent GB-1161323-A (GB)
Title: Closure Cap for a Container
Inventor: WEIGAND BRUNO
IPC: B65D41/06
Filed: 1966-08-12
Abstract: 1,161,323. Caps for bottles, &c. TAMPERPROOF-TOPS INDUSTRIES Ltd. 12 Aug., 1966, No. 19884/69. Divided out of 1,161,322. Heading B8T. The description is substantially the same as that of Specification 1,161,322, but the claims are directed to a closure cap having a top surrounded by an annular flexible part which connects it to a peripheral skirt, an annular seal integral with the top, and inwardly extending lugs inside the skirt, openings between the annular seal and the skirt being aligned with the lugs.
Patent GB-294958-A (GB)
Title: Method of reducing inflammability of hydrogen
IPC: C01B3/00
Filed: 1928-07-09
Abstract: 294,958. Koku-kenkyujo. Aug. 2, 1927, [Convention date]. Gaseous mixtures. - The inflammability of hydrogen and the risk of its explosion in admixture with air is diminished by addition thereto in gas or vapour state of a small amount e.g. 0.2-2 per cent by volume of one or more compounds having a higher theoretical flame propogation temperature than hydrogen. The com. pounds used include benzene, methyl, ethyl and other alcohols, petroleum hydrocarbons and methyl cyclohexane. Specification 18056/10 [Class 1 (i), Chemical processes &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the addition to the hydrogen of toluene and ether. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1105504-A (GB)
Title: Improvements in or relating to automotive vehicle brakes
IPC: F16D65/22
Filed: 1965-05-11
Abstract: 1,105,504. Brakes; Fluid pressure control of brakes. SOC. ANON. FRANCAISE DU FERODO. 11 May, 1965 [11 May, 1964], No. 19903/65. Addition to 1,100,221. Headings F2E and F2F. Fluid pressure braking system.-A drum brake comprises a drum fast for rotation with a vehicle wheel, interconnected first and second brake shoes 27, 28 floatingly disposed within the drum and adapted to be applied thereto, elastic restoring means for disengaging the shoes from the drum, a stationary bushing plate supporting an hydraulic cylinder 32, a first piston and a second piston slidable in an actuation chamber 45 of the cylinder and cooperating with the shoes 27, 28 respectively, means for applying fluid pressure between the pistons and pressure-responsive means comprising a third piston 31 slidably mounted in a modulation chamber 55 of the cylinder and operatively associated with piston 42 and a sealing seat 49, 50 operatively associated with pistons 31, 34, the pressure responsive means being operable between the second shoe 28 and the cylinder and being adapted to yield in response to a sufficient pressure, whereby in a first phase of operation before that yield the brake operates with a self-releasing action. The pressure in the modulation chamber is capable of variation according to the load on the vehicle, and may be derived from the suspension spheres 66 of a fluid suspension unit or (Figs. 3 and 4, not shown) from a unit coupled between the vehicle's chassis and rear axle. The actuation chamber is supplied directly from the master cylinder 10. A valve (93, 95, Fig. 5, not shown), may be included in the connection from master cylinder to actuator. In this valve the master cylinder pressure which tends to close the valve, is opposed by the effect of the load dependent pressure. Internal shoe brake actuator.-The brake actuator piston 30 has a collar 38 disposed between stops 40, 41 and is moved in the direction of drum rotation by fluid supplied to chamber 45 to apply shoes 26, 27 with a selfservo action, the shoe 27 abutting piston 31 with a force which is a multiple of that exerted by piston 30. Piston 31 is thus acted upon by this leftward force and two rightward forces due to pressures in chambers 45 and 55. With increasing braking effort the leftward force increases more quickly until the pistons move leftwards, piston 30 then abutting stop 41 when the braking effort is thereafter exerted on shoe 27 with a " de-servo " action. The point of change-over from self servo action is dependent on the pressure in chamber which varies with the vehicle load.
Patent GB-183478-A (GB)
Title: Improvements in worm hobs for gear cutting
IPC: B23F21/16
Filed: 1922-07-20
Abstract: 183,478. Ramsay & Moeglen. July 23, 1921, [Convention date]. Milling-cutters.-In a worm hob for gear-cutting, the cutting edges are formed by the intersection of two oppositelyinclined helical grooves 1, 2, with the thread 3 of the hob so that succeeding teeth 4 work alternately on the right and left thus facilitating the cutting and disengagement of the chips.